A boy uses a simple pulley to pull a block up a ramp. The height of the ramp is 4 m and the length of the ramp is 10 m Assuming that the ramp is frictionless, what is the ideal mechanical advantage of the ramp and does the pulley provide any additional advantage?

А The mechanical advantage of the ramp is 2.5, and the pulley does not provide any additional mechanical advantage.

B The mechanical advantage of the ramp is 10, and the pulley does not provide any additional mechanical advantage.

C The mechanical advantage of the ramp is 40, and the pulley does provide an additional mechanical advantage.

D The ideal mechanical advantage of the ramp is 0.4, and the pulley makes it easier to pull the block up the ramp.